2 * Copyright 2016 The Chromium OS Authors. All rights reserved.
3 * Use of this source code is governed by a BSD-style license that can be
4 * found in the LICENSE file.
7 #include "../cros_gralloc_driver.h"
9 #include <hardware/gralloc.h>
12 struct gralloc0_module {
13 gralloc_module_t base;
14 std::unique_ptr<alloc_device_t> alloc;
15 std::unique_ptr<cros_gralloc_driver> driver;
18 /* This enumeration must match the one in <gralloc_drm.h>.
19 * The functions supported by this gralloc's temporary private API are listed
20 * below. Use of these functions is highly discouraged and should only be
21 * reserved for cases where no alternative to get same information (such as
22 * querying ANativeWindow) exists.
26 GRALLOC_DRM_GET_STRIDE,
27 GRALLOC_DRM_GET_FORMAT,
28 GRALLOC_DRM_GET_DIMENSIONS,
29 GRALLOC_DRM_GET_BACKING_STORE,
33 static int64_t gralloc0_convert_flags(int flags)
35 uint64_t usage = BO_USE_NONE;
37 if (flags & GRALLOC_USAGE_CURSOR)
39 if ((flags & GRALLOC_USAGE_SW_READ_MASK) == GRALLOC_USAGE_SW_READ_RARELY)
40 usage |= BO_USE_SW_READ_RARELY;
41 if ((flags & GRALLOC_USAGE_SW_READ_MASK) == GRALLOC_USAGE_SW_READ_OFTEN)
42 usage |= BO_USE_SW_READ_OFTEN;
43 if ((flags & GRALLOC_USAGE_SW_WRITE_MASK) == GRALLOC_USAGE_SW_WRITE_RARELY)
44 usage |= BO_USE_SW_WRITE_RARELY;
45 if ((flags & GRALLOC_USAGE_SW_WRITE_MASK) == GRALLOC_USAGE_SW_WRITE_OFTEN)
46 usage |= BO_USE_SW_WRITE_OFTEN;
47 if (flags & GRALLOC_USAGE_HW_TEXTURE)
48 usage |= BO_USE_TEXTURE;
49 if (flags & GRALLOC_USAGE_HW_RENDER)
50 usage |= BO_USE_RENDERING;
51 if (flags & GRALLOC_USAGE_HW_2D)
52 usage |= BO_USE_RENDERING;
53 if (flags & GRALLOC_USAGE_HW_COMPOSER)
54 /* HWC wants to use display hardware, but can defer to OpenGL. */
55 usage |= BO_USE_SCANOUT | BO_USE_TEXTURE;
56 if (flags & GRALLOC_USAGE_HW_FB)
58 if (flags & GRALLOC_USAGE_EXTERNAL_DISP)
60 * This flag potentially covers external display for the normal drivers (i915,
61 * rockchip) and usb monitors (evdi/udl). It's complicated so ignore it.
64 if (flags & GRALLOC_USAGE_PROTECTED)
65 usage |= BO_USE_PROTECTED;
66 if (flags & GRALLOC_USAGE_HW_VIDEO_ENCODER)
67 /*HACK: See b/30054495 */
68 usage |= BO_USE_SW_READ_OFTEN;
69 if (flags & GRALLOC_USAGE_HW_CAMERA_WRITE)
70 usage |= BO_USE_CAMERA_WRITE;
71 if (flags & GRALLOC_USAGE_HW_CAMERA_READ)
72 usage |= BO_USE_CAMERA_READ;
73 if (flags & GRALLOC_USAGE_RENDERSCRIPT)
74 /* We use CPU for compute. */
75 usage |= BO_USE_LINEAR;
80 static int gralloc0_alloc(alloc_device_t *dev, int w, int h, int format, int usage,
81 buffer_handle_t *handle, int *stride)
85 struct cros_gralloc_buffer_descriptor descriptor;
86 auto mod = (struct gralloc0_module *)dev->common.module;
89 descriptor.height = h;
90 descriptor.droid_format = format;
91 descriptor.producer_usage = descriptor.consumer_usage = usage;
92 descriptor.drm_format = cros_gralloc_convert_format(format);
93 descriptor.drv_usage = gralloc0_convert_flags(usage);
95 supported = mod->driver->is_supported(&descriptor);
96 if (!supported && (usage & GRALLOC_USAGE_HW_COMPOSER)) {
97 descriptor.drv_usage &= ~BO_USE_SCANOUT;
98 supported = mod->driver->is_supported(&descriptor);
102 cros_gralloc_error("Unsupported combination -- HAL format: %u, HAL flags: %u, "
103 "drv_format: %4.4s, drv_flags: %llu",
104 format, usage, reinterpret_cast<char *>(&descriptor.drm_format),
105 static_cast<unsigned long long>(descriptor.drv_usage));
109 ret = mod->driver->allocate(&descriptor, handle);
113 auto hnd = cros_gralloc_convert_handle(*handle);
114 *stride = hnd->pixel_stride;
119 static int gralloc0_free(alloc_device_t *dev, buffer_handle_t handle)
121 auto mod = (struct gralloc0_module *)dev->common.module;
122 return mod->driver->release(handle);
125 static int gralloc0_close(struct hw_device_t *dev)
127 /* Memory is freed by managed pointers on process close. */
131 static int gralloc0_open(const struct hw_module_t *mod, const char *name, struct hw_device_t **dev)
133 auto module = (struct gralloc0_module *)mod;
136 *dev = &module->alloc->common;
140 if (strcmp(name, GRALLOC_HARDWARE_GPU0)) {
141 cros_gralloc_error("Incorrect device name - %s.", name);
145 module->driver = std::make_unique<cros_gralloc_driver>();
146 if (module->driver->init()) {
147 cros_gralloc_error("Failed to initialize driver.");
151 module->alloc = std::make_unique<alloc_device_t>();
153 module->alloc->alloc = gralloc0_alloc;
154 module->alloc->free = gralloc0_free;
155 module->alloc->common.tag = HARDWARE_DEVICE_TAG;
156 module->alloc->common.version = 0;
157 module->alloc->common.module = (hw_module_t *)mod;
158 module->alloc->common.close = gralloc0_close;
160 *dev = &module->alloc->common;
164 static int gralloc0_register_buffer(struct gralloc_module_t const *module, buffer_handle_t handle)
166 auto mod = (struct gralloc0_module *)module;
169 mod->driver = std::make_unique<cros_gralloc_driver>();
170 if (mod->driver->init()) {
171 cros_gralloc_error("Failed to initialize driver.");
176 return mod->driver->retain(handle);
179 static int gralloc0_unregister_buffer(struct gralloc_module_t const *module, buffer_handle_t handle)
181 auto mod = (struct gralloc0_module *)module;
182 return mod->driver->release(handle);
185 static int gralloc0_lock(struct gralloc_module_t const *module, buffer_handle_t handle, int usage,
186 int l, int t, int w, int h, void **vaddr)
190 uint8_t *addr[DRV_MAX_PLANES];
191 auto mod = (struct gralloc0_module *)module;
193 auto hnd = cros_gralloc_convert_handle(handle);
195 cros_gralloc_error("Invalid handle.");
199 if ((hnd->droid_format == HAL_PIXEL_FORMAT_YCbCr_420_888)) {
200 cros_gralloc_error("HAL_PIXEL_FORMAT_YCbCr_*_888 format not compatible.");
205 flags = gralloc0_convert_flags(usage);
206 ret = mod->driver->lock(handle, fence, flags, addr);
211 static int gralloc0_unlock(struct gralloc_module_t const *module, buffer_handle_t handle)
213 auto mod = (struct gralloc0_module *)module;
214 return mod->driver->unlock(handle);
217 static int gralloc0_perform(struct gralloc_module_t const *module, int op, ...)
220 int32_t *out_format, ret;
222 buffer_handle_t handle;
223 uint32_t *out_width, *out_height, *out_stride;
224 auto mod = (struct gralloc0_module *)module;
227 case GRALLOC_DRM_GET_STRIDE:
228 case GRALLOC_DRM_GET_FORMAT:
229 case GRALLOC_DRM_GET_DIMENSIONS:
230 case GRALLOC_DRM_GET_BACKING_STORE:
239 handle = va_arg(args, buffer_handle_t);
240 auto hnd = cros_gralloc_convert_handle(handle);
242 cros_gralloc_error("Invalid handle.");
247 case GRALLOC_DRM_GET_STRIDE:
248 out_stride = va_arg(args, uint32_t *);
249 *out_stride = hnd->pixel_stride;
251 case GRALLOC_DRM_GET_FORMAT:
252 out_format = va_arg(args, int32_t *);
253 *out_format = hnd->droid_format;
255 case GRALLOC_DRM_GET_DIMENSIONS:
256 out_width = va_arg(args, uint32_t *);
257 out_height = va_arg(args, uint32_t *);
258 *out_width = hnd->width;
259 *out_height = hnd->height;
261 case GRALLOC_DRM_GET_BACKING_STORE:
262 out_store = va_arg(args, uint64_t *);
263 ret = mod->driver->get_backing_store(handle, out_store);
274 static int gralloc0_lock_ycbcr(struct gralloc_module_t const *module, buffer_handle_t handle,
275 int usage, int l, int t, int w, int h, struct android_ycbcr *ycbcr)
279 uint8_t *addr[DRV_MAX_PLANES] = { nullptr, nullptr, nullptr, nullptr };
280 auto mod = (struct gralloc0_module *)module;
282 auto hnd = cros_gralloc_convert_handle(handle);
284 cros_gralloc_error("Invalid handle.");
288 if ((hnd->droid_format != HAL_PIXEL_FORMAT_YCbCr_420_888) &&
289 (hnd->droid_format != HAL_PIXEL_FORMAT_YV12) &&
290 (hnd->droid_format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED)) {
291 cros_gralloc_error("Non-YUV format not compatible.");
296 flags = gralloc0_convert_flags(usage);
297 ret = mod->driver->lock(handle, fence, flags, addr);
301 switch (hnd->format) {
302 case DRM_FORMAT_NV12:
305 ycbcr->cr = addr[1] + 1;
306 ycbcr->ystride = hnd->strides[0];
307 ycbcr->cstride = hnd->strides[1];
308 ycbcr->chroma_step = 2;
310 case DRM_FORMAT_YVU420:
311 case DRM_FORMAT_YVU420_ANDROID:
315 ycbcr->ystride = hnd->strides[0];
316 ycbcr->cstride = hnd->strides[1];
317 ycbcr->chroma_step = 1;
320 mod->driver->unlock(handle);
327 static struct hw_module_methods_t gralloc0_module_methods = {.open = gralloc0_open };
329 struct gralloc0_module HAL_MODULE_INFO_SYM = {
334 .tag = HARDWARE_MODULE_TAG,
335 .module_api_version = GRALLOC_MODULE_API_VERSION_0_2,
336 .hal_api_version = 0,
337 .id = GRALLOC_HARDWARE_MODULE_ID,
338 .name = "CrOS Gralloc",
339 .author = "Chrome OS",
340 .methods = &gralloc0_module_methods,
343 .registerBuffer = gralloc0_register_buffer,
344 .unregisterBuffer = gralloc0_unregister_buffer,
345 .lock = gralloc0_lock,
346 .unlock = gralloc0_unlock,
347 .perform = gralloc0_perform,
348 .lock_ycbcr = gralloc0_lock_ycbcr,